GB/T 20501.7-2014
China national
standard english version:
GB
中华人民共和国国家标准
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 20501.7-2014
Public information guidance systems―Design principles and requirements for guidance elements―Part 7:Information index sign 公共信息导向系统 导向要素的设计原则与要求 第7部分:信息索引标志
Issued Date:2014-09-03
Implemented Date:2015-02-01
Issued by:
The Standardization Administration of the People's Republic of China